.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E55D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1E1F9400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2228B2A7628
 
call      qword ptr [7FFF7E514E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDC76A8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,13DF8CB14F90
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E514828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,13DF8CB14F90
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E514390]
 
mov       rcx,13DF8CB14F90
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E5EE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E5EE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDC5320]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1E1F9400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED67198]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED64F90]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDAC330]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED672A0]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E44C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1E1F9401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6A7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,13DF8CB14F90
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E5144B0]
 
mov       rcx,13DF8CB14F90
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2228B290008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E55DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E6857E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E685800]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E57D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1E149400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,221DB317628
 
call      qword ptr [7FFF7E534E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E307738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDE79D8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0FECEB900F0E4
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E534828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0FECEB900F0E4
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E534390]
 
mov       rcx,0FECEB900F0E4
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E60E8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E60E370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDE5650]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1E149400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED87198]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED84F90]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDC7E28]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED872A0]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E46C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1E149401DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6C7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0FECEB900F0E4
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E5344B0]
 
mov       rcx,0FECEB900F0E4
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,221DB300008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E57DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E6A57E8]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E6A5800]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E65C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1EA3C000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,22ACDDB7628
 
call      qword ptr [7FFF7E594810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E317738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDFC1E0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,94659EAB54EF
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E594228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,94659EAB54EF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FD20]
 
mov       rcx,94659EAB54EF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E53F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E53F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDF5A40]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1EA3C000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED97AB0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED958A8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDDC8E8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED97BB8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E47C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1EA3C005C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6D75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,94659EAB54EF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FE40]
 
mov       rcx,94659EAB54EF
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,22ACDDA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L02
 
test      r8b,18
 
je        short M04_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M04_L00
  
ret
 
M04_L01
  
test      r8b,4
 
je        short M04_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M04_L00
 
M04_L02
  
cmp       r8,40
 
ja        short M04_L06
 
M04_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L10
 
M04_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L05
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M04_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M04_L00
 
M04_L06
  
cmp       r8,800
 
ja        short M04_L09
 
mov       r9,r8
 
shr       r9,6
 
M04_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L03
 
jmp       short M04_L04
 
M04_L08
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L09
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M04_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M04_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E65C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,2ABC2000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2EC53F97628
 
call      qword ptr [7FFF7E594810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E317738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDF7D98]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0CF2674B06C97
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E594228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0CF2674B06C97
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FD20]
 
mov       rcx,0CF2674B06C97
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E53F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E53F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDF5950]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2ABC2000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED97AB0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED958A8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDDCC18]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED97BB8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E47C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2ABC2005C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6D75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0CF2674B06C97
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FE40]
 
mov       rcx,0CF2674B06C97
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2EC53F80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,213E1C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2546FA67648
 
call      qword ptr [7FFF7E564810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDCD1D0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,63F612002682
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E564228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,63F612002682
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FD20]
 
mov       rcx,63F612002682
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E50F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E50F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDC6D78]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,213E1C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED6D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED66F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDAE118]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED6D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E44C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,213E1C05C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,63F612002682
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FE40]
 
mov       rcx,63F612002682
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2546FA50008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E65C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,2887C800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2C90E6B7648
 
call      qword ptr [7FFF7E594810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E317738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDFD2A8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,76CECC523B4E
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E594228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,76CECC523B4E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FD20]
 
mov       rcx,76CECC523B4E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E53F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E53F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDF6B20]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,2887C800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED9D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED96F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDDDDE8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED9D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E47C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,2887C805C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6D75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,76CECC523B4E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FE40]
 
mov       rcx,76CECC523B4E
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2C90E6A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E61C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,19EACC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1DF3AAF7648
 
call      qword ptr [7FFF7E554810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDBD1D0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,15C85E18DD74
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E554228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,15C85E18DD74
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E52FD20]
 
mov       rcx,15C85E18DD74
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E4FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E4FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDB6D78]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,19EACC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED5D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED56F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7ED9E118]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED5D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E43C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,19EACC05C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,15C85E18DD74
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E52FE40]
 
mov       rcx,15C85E18DD74
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1DF3AAE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E64C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,12A37800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,16AC18C7648
 
call      qword ptr [7FFF7E584810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E307738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDED1D0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,9382F79C2594
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E584228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,9382F79C2594
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E55FD20]
 
mov       rcx,9382F79C2594
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E52F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E52F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDE6D78]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,12A37800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED8D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED86F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDCE118]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED8D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E46C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,12A2F803C18
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6C75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,9382F79C2594
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E55FE40]
 
mov       rcx,9382F79C2594
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,16AC18B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E56D050]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,288DAC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2C96CB77628
 
call      qword ptr [7FFF7E524E10]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5796D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8B4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E81E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6BB8C8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E81E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8B4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E526718]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDD7F30]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,8BC77C331F1
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E524828]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,8BC77C331F1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E524390]
 
mov       rcx,8BC77C331F1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E5FE8C8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E5FE370]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDD5878]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,288DAC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED77198]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED74F90]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDB7E28]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED772A0]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E45C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,288DAC01DE8
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6B7320]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,8BC77C331F1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E5244B0]
 
mov       rcx,8BC77C331F1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2C96CB60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E695D58]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,2C96CB60008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E56DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E6957E8]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E695800]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E64C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,25FF0000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2A07DE57628
 
call      qword ptr [7FFF7E584810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8C4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E82E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6CBB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E3B6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E82E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E3B6B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8C4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5D6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E307738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDE7F30]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,824B57F3469F
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E584228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,824B57F3469F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E55FD20]
 
mov       rcx,824B57F3469F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E52F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E52F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDE5BA8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,25FF0000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED87198]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED84F90]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDC7E28]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED872A0]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E46C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,25FEC003C18
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6C75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,824B57F3469F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E55FE40]
 
mov       rcx,824B57F3469F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2A07DE40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E5AEF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,2A07DE40008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E65C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1838A400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1C41C4B7628
 
call      qword ptr [7FFF7E594810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8D4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E83E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6DBB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E83E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8D4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5E6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E317738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDFC330]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C9A2A69754C0
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E594228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C9A2A69754C0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FD20]
 
mov       rcx,0C9A2A69754C0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E53F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E53F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDF5F98]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1838A400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED97AB0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED958A8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDDCC18]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED97BB8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E47C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1838A405C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6D75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C9A2A69754C0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FE40]
 
mov       rcx,0C9A2A69754C0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1C41C4A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E5BEF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1C41C4A0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,10E7B400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,14F092C7628
 
call      qword ptr [7FFF7E564810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8A4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E80E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6ABB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E80E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8A4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5B6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDCC630]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,3CD2DC575E36
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E564228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,3CD2DC575E36
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FD20]
 
mov       rcx,3CD2DC575E36
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E50F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E50F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDC5EA8]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,10E7B400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED67AB0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED658A8]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDAC8E8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED67BB8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E44C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,10E7B405C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,3CD2DC575E36
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FE40]
 
mov       rcx,3CD2DC575E36
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,14F092B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E58EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,14F092B0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E65C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1BC5AC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1FCECB47648
 
call      qword ptr [7FFF7E594810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8D4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E83E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6DBB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E83E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8D4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5E6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E317738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDFD800]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,831D6B9CF617
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E594228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,831D6B9CF617
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FD20]
 
mov       rcx,831D6B9CF617
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E53F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E53F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDF7078]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1BC5AC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED9D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED96F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDDDDE8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED9D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E47C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1BC5AC05C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6D75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,831D6B9CF617
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E56FE40]
 
mov       rcx,831D6B9CF617
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1FCECB30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E5BEF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1FCECB30008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E63C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,203C9800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2445B837648
 
call      qword ptr [7FFF7E574810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8B4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E81E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6BBB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E81E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8B4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5C6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2F7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDDD800]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,3C80379A8524
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E574228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,3C80379A8524
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E54FD20]
 
mov       rcx,3C80379A8524
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E51F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E51F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDD7078]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,203C9800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED7D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED76F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDBDDE8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED7D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E45C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,203C9805C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6B75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,3C80379A8524
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E54FE40]
 
mov       rcx,3C80379A8524
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2445B820008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E59EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,2445B820008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,167D8000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1A8660E7648
 
call      qword ptr [7FFF7E564810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E8A4CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E80E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E6ABB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E80E9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E8A4AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5B6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2E7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDCD728]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0B0DCB66620F0
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E564228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0B0DCB66620F0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FD20]
 
mov       rcx,0B0DCB66620F0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E50F8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E50F360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDC72D0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,167D8000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED6D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED66F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7EDAE118]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED6D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E44C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,167D4003C18
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6A75C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0B0DCB66620F0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E53FE40]
 
mov       rcx,0B0DCB66620F0
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1A8660D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E58EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1A8660D0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E61C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,170D4800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1B166907648
 
call      qword ptr [7FFF7E554810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FFF7E894CF0]
 
mov       ecx,0F
 
mov       rdx,7FFF7E7FE9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1436
 
mov       rdx,7FFF7E69BB70
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E386B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FFF7E7FE9A8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E386B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FFF7E894AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FFF7E5A6670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E2D7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FFF7EDBCFD8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,77BA95C626E1
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FFF7E554228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      System.String.FastAllocateString(Int32)
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,77BA95C626E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E52FD20]
 
mov       rcx,77BA95C626E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E4FF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FFF7E4FF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FFF7EDB7078]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,170D4800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FFF7ED5D1D0]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FFF7ED56F58]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FFF7ED9DDE8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FFF7ED5D2D8]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FFF7E43C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,170D4805C10
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FFF7E6975C8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,77BA95C626E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FFF7E52FE40]
 
mov       rcx,77BA95C626E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1B1668F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FFF7E57EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1B1668F0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L06
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,247B3C00428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,28841A07628
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L05
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L04
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L05
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
call      qword ptr [7FFF7EE3C0F0]
 
test      eax,eax
 
je        near ptr M00_L13
 
jmp       near ptr M00_L12
 
M00_L04
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5996D0]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L07
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L10
 
jmp       short M00_L08
 
M00_L07
  
call      qword ptr [7FFF7EE3C0F0]
 
test      eax,eax
 
jne       short M00_L10
 
M00_L08
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L09
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L10
 
jmp       near ptr M00_L24
 
M00_L09
  
call      qword ptr [7FFF7EE3C0F0]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L10
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L11
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       near ptr M00_L03
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L11
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EE3C0F0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EE3C0F0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       r15,rsi
 
M00_L21
  
mov       [rsp+30],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       r15,288419F0008
 
jmp       short M00_L21
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,81BCC1F133DB
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E58C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E58C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,81BCC1F133DB
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E58C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E546790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E58DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E6B57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E6B5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,288419F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,24CDB400428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,28D6D2F7628
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EE2EAA8]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF7EE2EAA8]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EE2EAA8]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EE2EAA8]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EE2EAA8]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,28D6D2E0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1B490023A44B
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1B490023A44B
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,28D6D2E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2A4EBC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2E579C47628
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L12
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L12
 
M00_L11
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L12
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        near ptr M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L13
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L16
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
M00_L14
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L13
 
jmp       short M00_L20
 
M00_L15
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L12
 
jmp       short M00_L11
 
M00_L16
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
jmp       short M00_L14
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       r15,rsi
 
M00_L21
  
mov       [rsp+38],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       r15,2E579C30008
 
jmp       short M00_L21
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E8BD3029D4AC
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E8BD3029D4AC
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2E579C30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1EAEAC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,22B7CB77628
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,22B7CB60008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,237063799BA
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,237063799BA
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,22B7CB60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,19EAE800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1DF3C817648
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC1ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1DF3C800008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,65C84A0A6FE0
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,65C84A0A6FE0
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1DF3C800008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,18F2E800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1CFBC897648
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC2ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      System.String.FastAllocateString(Int32)
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1CFBC880008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,36211EDFAEFF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,36211EDFAEFF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1CFBC880008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1DF74000428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,220060D7648
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        near ptr M00_L24
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       r13,rax
 
mov       esi,[r13+8]
 
test      esi,esi
 
je        near ptr M00_L25
 
movzx     ecx,word ptr [r13+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC3ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       edi,[rsi-1]
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L25
 
M00_L08
  
call      qword ptr [7FFF7EC3ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L25
 
M00_L09
  
xor       ebp,ebp
 
test      esi,esi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,ebp
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EC3ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       ebp
 
cmp       esi,ebp
 
jg        short M00_L10
 
M00_L13
  
lea       edi,[rsi-1]
 
cmp       edi,ebp
 
jl        short M00_L20
 
mov       ecx,edi
 
or        ecx,ebp
 
jl        short M00_L17
 
cmp       esi,edi
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EC3ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       edi,esi
 
jae       near ptr M00_L26
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC3ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L17
 
M00_L20
  
mov       r14d,edi
 
sub       r14d,ebp
 
inc       r14d
 
cmp       esi,r14d
 
jne       short M00_L22
 
mov       rsi,r13
 
M00_L21
  
mov       [rsp+30],rsi
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      r14d,r14d
 
je        short M00_L23
 
mov       ecx,r14d
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
mov       r8d,r14d
 
cmp       [rsi],sil
 
lea       rcx,[rsi+0C]
 
mov       edx,ebp
 
lea       rdx,[r13+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rsi,220060C0008
 
jmp       short M00_L21
 
M00_L24
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L01
 
M00_L25
  
mov       rsi,r13
 
jmp       short M00_L21
 
M00_L26
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BBCBABD0F5B8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BBCBABD0F5B8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,220060C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,238BE800428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,27950787648
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        near ptr M00_L24
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       r13,rax
 
mov       esi,[r13+8]
 
test      esi,esi
 
je        near ptr M00_L25
 
movzx     ecx,word ptr [r13+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FFF7EC4ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       edi,[rsi-1]
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L25
 
M00_L08
  
call      qword ptr [7FFF7EC4ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        near ptr M00_L25
 
M00_L09
  
xor       ebp,ebp
 
test      esi,esi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,ebp
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FFF7EC4ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       ebp
 
cmp       esi,ebp
 
jg        short M00_L10
 
M00_L13
  
lea       edi,[rsi-1]
 
cmp       edi,ebp
 
jl        short M00_L20
 
mov       ecx,edi
 
or        ecx,ebp
 
jl        short M00_L17
 
cmp       esi,edi
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FFF7EC4ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       edi,esi
 
jae       near ptr M00_L26
 
mov       ecx,edi
 
movzx     ecx,word ptr [r13+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FFF8D3A2E48
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FFF7EC4ECE8]; System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       edi
 
cmp       edi,ebp
 
jge       short M00_L17
 
M00_L20
  
mov       r14d,edi
 
sub       r14d,ebp
 
inc       r14d
 
cmp       esi,r14d
 
jne       short M00_L22
 
mov       rsi,r13
 
M00_L21
  
mov       [rsp+30],rsi
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      r14d,r14d
 
je        short M00_L23
 
mov       ecx,r14d
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
mov       r8d,r14d
 
cmp       [rsi],sil
 
lea       rcx,[rsi+0C]
 
mov       edx,ebp
 
lea       rdx,[r13+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rsi,27950770008
 
jmp       short M00_L21
 
M00_L24
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L01
 
M00_L25
  
mov       rsi,r13
 
jmp       short M00_L21
 
M00_L26
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,14D7444F94FD
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,14D7444F94FD
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27950770008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CharUnicodeInfo.GetIsWhiteSpace(Char)
sub       rsp,28
 
movzx     ecx,cx
 
call      qword ptr [7FFF8DE07370]; Precode of System.Globalization.CharUnicodeInfo.GetCategoryCasingTableOffsetNoBoundsChecks(UInt32)
 
mov       rcx,[7FFF8DE20750]
 
cmp       byte ptr [rcx+rax],0
 
setl      al
 
movzx     eax,al
 
add       rsp,28
 
ret
 
Extern method
System.String.FastAllocateString(Int32)

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
cmp       dword ptr [rdi+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,21FAA800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,26038747628
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r14d,[rax+8]
 
test      r14d,r14d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r15d,[rsi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M00_L02
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r14d,r15d
 
mov       [rsi+18],r14d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       [rdi+8],ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0AADE5065F7C4
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E57C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E57C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0AADE5065F7C4
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E57C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E536790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E57DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E6A57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E6A5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,26038730008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1BC3FC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1FCCDAC7628
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A2AACD129C70
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A2AACD129C70
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1FCCDAB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1F81A000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,238A8047628
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A8E2B5CBF926
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A8E2B5CBF926
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,238A8030008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,148E6000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,18973EB7628
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8C355651B64
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8C355651B64
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,18973EA0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2B383000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2F410CD7648
 
call      qword ptr [7FFF7E386C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F1030179ED40
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F1030179ED40
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E617318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2F410CC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,20653800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,246E1767648
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0F81F46F4107C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0F81F46F4107C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,246E1750008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,19DDC800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1DE6A707648
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,6A25F2EBB8F4
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,6A25F2EBB8F4
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1DE6A6F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,25F2DC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,29FBBC67648
 
call      qword ptr [7FFF7E386C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BED073C424D6
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BED073C424D6
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E617318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,29FBBC50008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1B931800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,1F9BF827628
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1C616245F430
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E57C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E57C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1C616245F430
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E57C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E536790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E57DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E6A57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E6A5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1F9BF810008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,25F08000428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,25E816B7628
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BD15796C7C16
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BD15796C7C16
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L02
 
test      r8b,18
 
je        short M02_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M02_L00
  
ret
 
M02_L01
  
test      r8b,4
 
je        short M02_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M02_L00
 
M02_L02
  
cmp       r8,40
 
ja        short M02_L06
 
M02_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L10
 
M02_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L05
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M02_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M02_L00
 
M02_L06
  
cmp       r8,800
 
ja        short M02_L09
 
mov       r9,r8
 
shr       r9,6
 
M02_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L03
 
jmp       short M02_L04
 
M02_L08
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L09
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       near ptr M02_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       near ptr M02_L04
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25E816A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,26853400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2A8E5257628
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3779BF960217
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3779BF960217
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2A8E5240008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,2B6DDC00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2F76BB97628
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3A9419C16E1C
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3A9419C16E1C
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2F76BB80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,17003400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1B095457648
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B7289F92CA50
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B7289F92CA50
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1B095440008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1DEB3C00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,21F41A17648
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0DD5FFFFFCA78
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0DD5FFFFFCA78
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,21F41A00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1BF18400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1FFAA457648
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,6FE16F0E468
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,6FE16F0E468
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1FFAA440008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,20F4B000428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,24FD8E27648
 
call      qword ptr [7FFF7E386C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0EA4458016312
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6170D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6171E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0EA4458016312
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E617318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5A66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24FD8E10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,207DAC00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rcx
 
mov       rcx,24868AD9078
 
mov       [rsp+48],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],2
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,24868AE7628
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E5996D0]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,1394F1B88441
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E58C000]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E58C108]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,1394F1B88441
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E58C240]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E546790]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E58DA58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E6B57E8]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E6B5800]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24868AD0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,28C8EC00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2CD209A9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2CD209B7628
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,520CA8E3D857
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,520CA8E3D857
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2CD209A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1E201800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2228F779078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2228F787628
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B2F196CE5D39
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B2F196CE5D39
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2228F770008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1FFD9000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,240670A9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,240670B7628
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2D06F09525B2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2D06F09525B2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,240670A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,2CE0FC00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,30E9DCB9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,30E9DCC7648
 
call      qword ptr [7FFF7E3B6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0E06E5A2B2AF2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6470D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6471E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0E06E5A2B2AF2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E647318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5D66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,30E9DCB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,177E4400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1B876489078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1B876497648
 
call      qword ptr [7FFF7E396C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8BFE31970494
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6270D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6271E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8BFE31970494
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E627318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5B66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1B876480008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,12D44C00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,16DD28E9078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,16DD28F7648
 
call      qword ptr [7FFF7E3A6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A3E649D8E9F1
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6370D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6371E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A3E649D8E9F1
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E637318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5C66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,16DD28E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,2122C000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,252B9D69078
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,252B9D77648
 
call      qword ptr [7FFF7E3C6C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D28EDD903FA5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FFF7E6570D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E6571E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D28EDD903FA5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FFF7E657318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FFF7E5E66E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,252B9D60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDF5230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,14CA1408AF8
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,18D33131C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFF7E65C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,18D33130008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,14CA1408AF8
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDF5230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,26BE300AAF0
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2AC70E91B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FFF7E58D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF7E5996D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2AC70E90008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,26BE300AAF0
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDF5950]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1BE1680AAF0
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1FEA85B1B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r13+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E58D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E5996D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1FEA85B0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2F258]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1BE1680AAF0
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2F228]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDE5C80]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,220B5C02B28
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2613BA01B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E57D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2613BA00008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,220B5C02B28
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDC6D78]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,12D6D40AAF0
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,16DFF241B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E55D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,16DFF240008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,12D6D40AAF0
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDF6B20]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,21FAB408AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2603D231C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E65C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2603D230008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,21FAB408AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDD6D78]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1BB1880AAF0
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1FBAA881B34
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E56D2D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E5796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1FBAA880008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1BB1880AAF0
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FFF7EDF6D78]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rbx,rdx
 
mov       rsi,r8
 
test      rsi,rsi
 
je        near ptr M01_L13
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1C2E0808AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rsi+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rbx],0
 
je        short M01_L07
 
mov       rdx,20372841C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FFF7E65C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20372840008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1C2E0808AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2335DDE9078
 
call      qword ptr [7FFF7EDC5248]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2335DDE9078
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,1F2CC008AF8
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,2335DDE1C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E62C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2335DDE0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1F2CC008AF8
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,24578A79078
 
call      qword ptr [7FFF7EDF5248]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,24578A79078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,204EEC02B28
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,24578A71B34
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r15+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E58D1A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FFF7E58D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FFF7E5996D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,24578A70008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,204EEC02B28
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E58D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,20D2A639078
 
call      qword ptr [7FFF7EDF5968]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,20D2A639078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1CC98808AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,20D2A631C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r13+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E65C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20D2A630008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1CC98808AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,20749C49078
 
call      qword ptr [7FFF7EDF5968]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,20749C49078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1C6BBC06B00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,20749C41C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E65C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20749C40008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1C6BBC06B00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E65C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB2EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1ED5C9A9078
 
call      qword ptr [7FFF7EDD6D90]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1ED5C9A9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1ACCAC08AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1ED5C9A1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E63C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1ED5C9A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1ACCAC08AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1C3F8AE9078
 
call      qword ptr [7FFF7EDE6D90]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1C3F8AE9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,18366C08AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1C3F8AE1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E64C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1C3F8AE0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,18366C08AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,24A5BE39078
 
call      qword ptr [7FFF7EDD6D90]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,24A5BE39078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,209CE006B00
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,24A5BE31C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E63C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,24A5BE30008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,209CE006B00
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,295CB8B9078
 
call      qword ptr [7FFF7EDD6B38]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		if (delimiter == null)
		^^^^^^^^^^^^^^^^^^^^^^
 
			delimiter = ControlChars.CommaSpace;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,295CB8B9078
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,25539C08AF8
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,295CB8B1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E63C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,295CB8B0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,25539C08AF8
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDE5200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        short M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
jmp       short M01_L06
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L16
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L11
 
M01_L10
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L16
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L17
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF7E5AED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDF5200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L17
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L18
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M01_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jle       near ptr M01_L15
 
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L16
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jle       short M01_L10
 
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       near ptr M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L06
 
M01_L16
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 
M01_L17
  
mov       ecx,6
 
call      qword ptr [7FFF7E5BED00]
 
int       3
 
M01_L18
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDE5920]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF7E5AED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDB5920]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L16
 
M01_L06
  
test      esi,esi
 
je        near ptr M01_L13
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L08
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L08
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L15
 
jmp       short M01_L11
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L07
 
M01_L11
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L15
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L14
 
jmp       short M01_L17
 
M01_L12
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L15
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L16
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L17
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L19
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L18
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L15
 
M01_L19
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L18
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L18
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFF7E57ED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDE6AF0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L21
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L22
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L12
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L12
 
mov       r13,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       eax,[r12+r8]
 
mov       [rsp+24],eax
 
cmp       eax,[r13+8]
 
ja        short M01_L11
 
jmp       near ptr M01_L16
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L19
 
M01_L08
  
test      esi,esi
 
je        short M01_L15
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L15
 
M01_L10
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       short M01_L19
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L15
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L12
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L24
 
jmp       near ptr M01_L03
 
M01_L16
  
movsxd    rcx,r12d
 
lea       rcx,[r13+rcx*2+10]
 
cmp       r8d,2
 
jg        short M01_L18
 
movzx     r10d,word ptr [rdx]
 
mov       [rcx],r10w
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L17
  
mov       eax,[rsp+24]
 
mov       [rbx+18],eax
 
jmp       short M01_L12
 
M01_L18
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L17
 
M01_L19
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L17
 
M01_L21
  
mov       ecx,6
 
call      qword ptr [7FFF7E5AED00]
 
int       3
 
M01_L22
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDC6AF0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF7E58ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDE6D48]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rbp,r8
 
mov       esi,r9d
 
mov       rdi,[rsp+80]
 
test      rdi,rdi
 
je        near ptr M01_L20
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rdi+10]
 
test      rcx,rcx
 
je        near ptr M01_L07
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L07
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L06
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L05
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L07
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L08
 
jmp       near ptr M01_L18
 
M01_L05
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L06
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L18
 
M01_L08
  
test      esi,esi
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L13
 
movzx     r8d,word ptr [rbp]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L10
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movzx     r8d,word ptr [rbp+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L09
 
M01_L11
  
mov       rcx,rbx
 
mov       rdx,rbp
 
mov       r8d,esi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
mov       eax,r15d
 
mov       rcx,[rdi+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
jmp       short M01_L14
 
M01_L13
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rbp
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L14
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L15
  
test      rcx,rcx
 
je        near ptr M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        near ptr M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L17
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L19
 
M01_L16
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L04
 
M01_L17
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L16
 
M01_L18
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L16
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FFF7E5AED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L15
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
mov       r9d,1
 
call      qword ptr [7FFF7EDF7A98]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rbp,r8
 
mov       esi,r9d
 
mov       rdi,[rsp+80]
 
test      rdi,rdi
 
je        near ptr M01_L22
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
je        near ptr M01_L23
 
mov       rcx,[rdi+10]
 
test      rcx,rcx
 
jne       short M01_L06
 
M01_L00
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L17
 
M01_L01
  
test      esi,esi
 
je        near ptr M01_L10
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L09
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rbp]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L03
 
M01_L02
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L10
 
M01_L03
  
movzx     r8d,word ptr [rbp+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L04
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L05
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L01
 
jmp       near ptr M01_L17
 
M01_L06
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L24
 
M01_L07
  
test      rcx,rcx
 
je        near ptr M01_L00
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L00
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L19
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        near ptr M01_L18
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L11
 
M01_L08
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       near ptr M01_L00
 
M01_L09
  
mov       rcx,rbx
 
mov       rdx,rbp
 
mov       r8d,esi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       eax,r15d
 
mov       rcx,[rdi+rax*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
jmp       short M01_L12
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L08
 
M01_L12
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L21
 
M01_L13
  
test      rcx,rcx
 
je        near ptr M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L05
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        near ptr M01_L04
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L20
 
M01_L14
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L05
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rbp
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L02
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L14
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L08
 
M01_L19
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L00
 
M01_L20
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L14
 
M01_L21
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L13
 
M01_L22
  
mov       ecx,6
 
call      qword ptr [7FFF7E5BED00]
 
int       3
 
M01_L23
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L24
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L07
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,26120EC9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDD5200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E59ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,25ABD379084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDC5200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E58ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,1C6B46F9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDC5920]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E58ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,26089BF9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDD5920]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E59ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,27EC24F9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDC6D48]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E58ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2056C689084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDE6D48]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E5AED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,253E5469084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDF6AF0]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E5BED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,2532C5C9084
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,offset MD_System.Text.StringBuilder.AppendJoinCore[[System.String, System.Private.CoreLib]](Char ByRef, Int32, System.String[])
 
call      qword ptr [7FFF7EDD6D48]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FFF7E59ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2E63AB90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1D3BDDC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,29475040008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E60EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E435B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E61CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E57E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E57E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E234000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E43D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1B0C23E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,29C3CCE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24476E90008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,17A811D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,264798A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1CD5C808160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB1E518]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDD52A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EB0E9D0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3A41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1CD5C808AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-30]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M03_L07
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M03_L06
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M03_L05
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,20DEE5B0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1CD5C808AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1A267806168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB0E518]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC52A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EAFE958]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1A267806B00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1E2F94C0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1A267806B00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,189AF006168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB2E478]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDE59C8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EB1E958]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3B41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,189AF006B00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1CA40E70008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,189AF006B00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,249EB408160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB0E518]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC59C8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EAFE958]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,249EB408AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,28A7D390008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,249EB408AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,233B7408160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB0E518]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EAFE958]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,233B7408AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,27449380008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,233B7408AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E62C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,15F99C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB1E3D8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDD6DF0]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EB0EDC0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3A41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F330]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,15F99C08AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1A027AA0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F330]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,15F99C08AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F300]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F300]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,21068C08160
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB2E518]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDE6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EB1E958]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3B41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,21068C08AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,250FACC0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,21068C08AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E64C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1F31D406168
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FFF7EB1E3F8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDD6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FFF7EB0ECE8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3A41F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F258]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1F31D406B00
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,233AF170008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F258]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1F31D406B00
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F228]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0F228]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L04
 
M00_L00
  
mov       ecx,[rsi+1C]
 
add       ecx,[rsi+18]
 
test      ecx,ecx
 
jle       short M00_L01
 
mov       ecx,[rsi+18]
 
mov       rdx,[rsi+8]
 
cmp       [rdx+8],ecx
 
ja        near ptr M00_L08
 
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E64C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L01
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2E5F16F0210
 
call      qword ptr [7FFF7E3B6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L02
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L03
 
mov       r8,2A563800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L03
 
mov       r8,2A563800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L03
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       short M00_L06
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E64CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L05
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L09
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E63EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M00_L10
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L07
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L07
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L08
  
mov       ecx,ecx
 
mov       word ptr [rdx+rcx*2+10],2C
 
inc       dword ptr [rsi+18]
 
jmp       near ptr M00_L01
 
M00_L09
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        near ptr M00_L05
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L10
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L07
 
M00_L11
  
call      qword ptr [7FFF7E5AEFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L02
 
M00_L13
  
call      qword ptr [7FFF7E554030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L03
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3B6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E5AEF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3B6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3B6B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E64CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E5AE9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E5AE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E264000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8FF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E46D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2E5F16F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E465B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L05
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E62C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1AA35550210
 
call      qword ptr [7FFF7E396B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,169A3400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,169A3400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E62CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L06
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L07
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E61EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L07
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L06
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L10
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L05
 
M00_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FFF7E58EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E534030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E58EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E396B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E62CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FFF7E58E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FFF7E58E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E244000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8DF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E44D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1AA35550008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FFF7E445B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E65C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2CB191F0210
 
call      qword ptr [7FFF7E3C6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,28A8B400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,28A8B400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E5BEFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E564030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E5BEF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2CB191F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E63C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,175253F0210
 
call      qword ptr [7FFF7E3A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,13497400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,13497400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E59EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E544030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E59EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,175253F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E63C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,23DB8790210
 
call      qword ptr [7FFF7E3A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1FD26800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1FD26800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E59EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E544030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E59EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L08
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L00
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M03_L02
 
M03_L00
  
test      r8,r8
 
je        short M03_L02
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M03_L02
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M03_L02
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M03_L02
  
ret
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L06
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L10
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L02
 
M03_L06
  
cmp       r8,800
 
ja        short M03_L09
 
mov       r9,r8
 
shr       r9,6
 
M03_L07
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L07
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L08
  
cmp       rcx,rdx
 
je        short M03_L02
 
M03_L09
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L10
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,23DB8790008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E63C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,1D2EA6E0210
 
call      qword ptr [7FFF7E3A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,19258800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,19258800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E59EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E544030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E59EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,1D2EA6E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E65C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,18A21B40210
 
call      qword ptr [7FFF7E3C6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,14993C00438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,14993C00418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r13d,[r15+8]
 
test      r13d,r13d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r12d,[rsi+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jle       short M00_L06
 
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r13d,r12d
 
mov       [rsi+18],r13d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        near ptr M00_L14
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E65CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E64EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r13,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r13+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [r13+8],rcx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L15
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E5BEFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E564030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L05
 
M00_L15
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E5BEF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3C6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF7E475B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E65CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E5BE9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E5BE9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E475B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E274000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E90F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E47D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,18A21B40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FFF7E63C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,15A2C340210
 
call      qword ptr [7FFF7E3A6B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1199A400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1199A400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r13d,[r15+8]
 
test      r13d,r13d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r12d,[rsi+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jle       short M00_L06
 
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r13d,r12d
 
mov       [rsi+18],r13d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        near ptr M00_L14
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r13d
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r13,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r13+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [r13+8],rcx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L15
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FFF7E59EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FFF7E544030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       near ptr M00_L05
 
M00_L15
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      System.String.FastAllocateString(Int32)
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FFF7E59EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FFF7E3A6B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FFF7E455B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FFF7E63CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186D1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FFF7E59E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FFF7E59E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      System.String.FastAllocateString(Int32)
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,186A1
 
mov       rdx,7FFF7E254000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FFF7E8EF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FFF7E45D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,15A2C340008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FFF8DDF41F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FFF8DE07B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FFF8DE08B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDD5218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-48],rax
 
mov       [rbp-38],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,23C3D806B00
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-38],rcx
 
cmp       qword ptr [rbp-38],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-38]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-38]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-38]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-38],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-40],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       edi,[r8+8]
 
test      edi,edi
 
je        short M01_L06
 
mov       r8,[r14+8]
 
mov       r13d,[r14+18]
 
lea       ecx,[rdi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       edi,2
 
jle       short M01_L04
 
movsxd    r8,edi
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
add       edi,r13d
 
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       edi,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
mov       r8d,edi
 
call      qword ptr [7FFF7E63CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E63C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E62EB18]; System.Text.StringBuilder.ToString()
 
mov       [rbp-48],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-48]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,27CCB540008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-38]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EBB0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,23C3D806B00
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       r13,[rbp-40]
 
mov       rcx,[r13+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[r13+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FFF7E63C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-40]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       r13,[rbp-40]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,r13
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,r13
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EB80]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDB5218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,155AF40AAF0
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF7E54D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E54D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,196412F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,155AF40AAF0
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDE5938]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1C347C0AAF0
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       eax,eax
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E57D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,203D5CC0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1C347C0AAF0
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDC5938]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1AA0B802B28
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E55D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1EA95520008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1AA0B802B28
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDC6D60]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,27061C0AAF0
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E55D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2B0F3A00008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,27061C0AAF0
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDD6D60]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1BBAFC02B28
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E56D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1FC35C70008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1BBAFC02B28
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDD6D60]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,174DFC0AAF0
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E56D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1B571A20008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,174DFC0AAF0
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FFF7EDE6D60]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2501AC02B28
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FFF7E57D2F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,290A48E0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2501AC02B28
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDD52A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3A41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,21EE2802B28
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-30]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M02_L04
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M02_L07
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M02_L06
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FFF7E455B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FFF7E56D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5796D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,25F6C7F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,21EE2802B28
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E56D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB0EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDE52A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3B41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,17B06C02B28
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,1BB90B60008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,17B06C02B28
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC59C8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,21DAF408AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,25E412F0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,21DAF408AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDB59C8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E54D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,27404008AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E54D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2B495E30008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,27404008AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDE6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3B41F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2BF48408AF8
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E465B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E57D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5896D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2FFDA410008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2BF48408AF8
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E57D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EB1EE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC6DF0]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,25933402B28
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,299B9520008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFF330]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,25933402B28
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFF300]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDC6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3941F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1F262C02B28
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E445B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E55D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5696D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,232ECB10008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEEC8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1F262C02B28
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E55D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAFEE98]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.13 (8.0.1325.6609), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action`1[[System.Text.StringBuilder, System.Private.CoreLib]]
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FFF7EDB6B98]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FFF7E3841F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FFF7E54D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,23002002B28
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FFF7E435B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E54D998]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FFF7E5596D0]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,27087E00008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,23002002B28
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FFF7E54D0F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FFF7EAEEF10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret